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Network delay

Network delay depends on the physical link delay and the available bandwidth (includingthe queue delays caused by the routing). This second parameter is stronglyrelated to the network load, and therefore, the network delay is atime-varyingamount of time. Moreover, because the network diameter in the P2PSP is 2, thenetwork delay must to be taken into account twice. Let us denote this time byN(t)>0.Let us denoteNdi(t)>0the network delayat physical link i.Due to the diameter of the P2PSP an upper bound of the network delay isNd(t)≤2maxi{Ndi(t)}.